Pump.



ZZ/@f/ l W/Mg@ M No. 737,499. IATEJIIED AUG. 25, 1903*.

' C. F. SCOTT.

PUMP.

APPLIUATION FILED NOV. 30. 1901.

N0 MODEL.

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UNITED STATES Patented August 25, 1903.

PATENT OFFICE.

PUMP.

SPECIFICATION forming part of Letters Patent No. 737,499, dated August 25, 1903.

Application filed November 30, 1901. Serial No. 84,264. (No model.)

To cti/Z whom t may concern:

Be it known that I, CHARLES F. SCOTT, a citizen of the United States, residing at Winthrop P. O., in the county of Shasta and State of California, have invented new and useful Improvements in Pumps, of which the following is a specification.

My invention relates to pumps; and its object is to provide a pump of improved construction adapted to raise a large volume of water with a comparatively small e'xpenditure of power.

With the above and other lobjects in view the invention consists in the novel construction and combination of parts hereinafter more fully described and claimed, and illustrated in the accompanying drawings, showing the preferred form of my invention.

In the drawings, Figure l is a side elevation of a pump embodying the invention. Fig. 2 is an end elevation of the same, partly in section; and Fig. 3 is a detail view of the double crank-shaft for operating the pumppistons detached from the pump.

The pump cylinders and the operating mechanism are supported upon a platform 1, mounted upon suitable legs or supports 2, and formed with elongated slots 3, through which the piston connections extend.

4 and 5 designate two cylinders supported in parallel relation upon the platform l longitudinally thereof.

6 and 7 designate two approximately Y- shaped suction pipes which connect the pump-cylinders with a main suction-pipe 8, the latter extending down into the well 0r cistern from which the water is to be drawn. The branches 9 and 10 of the pipe 6 communicate with the outer ends of the cylinders, one branch leading to each cylinder, while the branches of the pipe 7 communicate in a similar manner with the inner ends of the cylinders 4 and 5. Each branch of the pipes 6 and 7 is formed with a valve-seat to receive a ball or other suitable valve adapted to be raised by suction to permit the upward currents of water to pass, but to drop by gravity to prevent the return of the water.

Above the cylinders 4 and 5 is arranged a receiver or reservoir 11, preferably of cylindrical form, communicating with the cylinders 4 and 5 by inverted approximately Y- shaped delivery-pipes 12 and 13, each of the branches of said pipes being provided with a valve-seat for a ball-valve 14, as shown in Fig. 2.

It will be perceived that by constructing each suction-pipe in the form of a Y of integral formation I have obviated the necessity of the use of couplings on the suctionpipes, thereby having no connections liable to leak, and have also provided a suction-pipe which is cheap, durable, and efficient and which facilitates the connection of a plurality of objects with one, as the connection of the two cylinders to the main suction-pipe.

Rising from the reservoir 11 and communicatin g therewith is an air-chamber 15,which serves to cushion the force of the inowing water and reduce the friction within the reservoir. The reservoir is also provided with a suitable discharge-pipe 16.

Within each of the pump-cylinders is arranged a suitable piston provided with a piston-rod 17, connected to a cross-head 18,

adapted to slide in longitudinal slots formed in a guide 19, supported upon the platform 1 and arranged longitudinally thereof in alinement with the longitudinal center of the cylinders. The cross-heads 18 are connected by rods or links 2O with the oppositely-disposed cranks 21 and 22, formed on a shaft 23, the ends of said shaft being also bent to form cranks 24 and 25.

The operation of the mechanism constructed as above described may be explained as follows: As illustrated in the drawings, the piston cross heads are so connected that when one piston moves inward the other one is moved outward, and the suction is alternately through one and then the other of the pipes 6 and 7. The branched members of these pipes insure a double action at each movement of each piston or a quadruplex action of the entire apparatus, thus insuring a continuous iniiow of water to the reservoir.

It will be obvious that the crank-shaft, which is supported in suitable bearings upon the platform, may be revolved either by hand or other power.

IOO

A suction-pump having a. single inlet and outlet and comprising parallel cylinders, an inlet-pipe, forked extensions to, and integral with, the inlet-pipe, said extensions opening into the ends of the cylinders, a reservoir above the cylinders, an outlet-pipe extending therefrom, forked delivery-pipes at the ends of the cylinders and communicating therewith and withl the reservoir, valves in the ro forked extensions and delivery-pipes, and oppositely-movable pistons within the cylinders. In testimony whereof I affix my signature in presence of two Witnesses.

CHARLES F. SCOTT. Witnesses:

L. E. BEALE, HARRY DONNELLY. 

